The difference between the L and N escutcheons is the size and how they are manufactured.
L Escutcheon: 8" x 1 3/4" x 7/16" (203mm x 44mm x 11mm) Cold-forged brass, bronze or stainless steel ...
The finishes below are available on the L9000, some lever designs and trims are not available in all finishes.
605
Bright Brass
606
Satin Brass
609
&...